表面活性剂

Effect of Nonionic Surfactant Tween80 and DOM on the Behaviors of Desorption of Phenanthrene and Pyrene in Soil-Water Systems.

表面活性剂Tween80及DOM对土壤中菲、芘解吸的影响。

Simultaneous determination of phenanthrene and naphthalene in loess soils with synchronous fluorimetry

研究了萘和菲在天然黄土和阳离子表面活性剂改性黄土上的吸附动力学过程。

KR2 with the presence of surfactants and phenanthrene was measured by using spectrophotometer, which compared with the results by using isotopic methods.

首先采用分光光度计方法测量表面活性剂和菲共存时分枝杆菌KR2菌株的生长过程，并与同位素示踪方法的研究结果相对比。

The surfactant is an important component of phenolic foam plastics .

表面活性剂是酚醛泡沫塑料的重要组成部分。

The result showed that the optimal condition of inorgano-absorbent manufacture as following: concentration of vitriol is 15%, the bentonite carrier must be soaked in the 0.4% La(superscript 3+) solution, the pH is 10, microwave radiation power is 340 W for 5 min. The optimal condition of organo-absorbent manufacture process as following: concentration of CTMA is 5%. The rate of wave must 166 W and the time of radiation is 6 mi In addition, the experimental results showed that with inorgano-absorbent the pH number is 3~6 and the reaction time is 45 min, the removal efficiency of phosphor will be up to 99% and the amount of adsorption will be up to 41 mg/g. And with organo-absorbent the pH number is 3~4 and the reaction time is 45 min, the removal efficiency of phosphor is more 30% than that of inorgano-absorbent. The removal efficiency of phosphor will be up to 99% and the number of adsorption will be up to 60 mg/g.

实验表明：①制备无机稀土吸附剂的适宜条件为：硫酸浓度15%，镧浓度0.4%，浸渍pH值10，微波功率340 W，辐射时间为5 min；②制备有机稀土吸附剂的适宜条件为：表面活性剂浸泡浓度为5%，微波功率为166 W，微波辐射时间为6 min；③无机稀土吸附剂当溶液的pH值为3~6，振荡时间为45 min时，对磷去除率为99%以上，吸附量达到了41 mg/g以上，有机稀土吸附剂当溶液的pH为3~4，振荡时间为45 min时，其效果比原来镧改性的无机吸附剂吸附量提高了30%，磷去除率为99%以上，吸附量达到了60 mg/g以上。

However, enhanced phosphorescence shows no clear correlation with the stability constants of ternary complexes and the type of the surfactants.

但三元包络物的表观稳定常数和表面活性剂类型与体系磷光强弱不呈相关关系。

Sodium fatty alcohlo ether sulfate, S-80, fatty alcohol-polyoxyethylene ether and S-60 resulted in slow photodecomposition of rotenone in aqueous solution revealing a photo-extinction effect, sodium dodecylberzenesulfonate, tween-60, hexadecyl trimethyl ammonium bromide and poyl vinyl pyrrolidone made the photolysis of rotenone in aqueous solution fast showing an obvious photosensitized effect.

室内条件下研究了鱼藤酮水溶液存在不同表面活性剂时，鱼藤酮的紫外光降解，结果表明：脂肪醇聚氧乙烯醚硫酸钠、司本－80、长链脂肪醇聚氧乙烯醚和司本－60对鱼藤酮在水溶液中的光解速率表现出显著的光猝灭降解效应；十二烷基苯磺酸钠、吐温－60、十六烷基三甲基溴化铵和聚乙烯吡咯烷酮对鱼藤酮在水溶液中的降解表现出一定程度的光敏化作用。

The structure and photoluminescence properties of the nanorods were characterized, and the growth mechanism was discussed.

在表面活性剂辅助的水热条件下合成出尺寸均一的Gd2O3∶Eu3+纳米棒，对其结构和荧光性质进行了表征，并对其生长机理进行了初步讨论。

Through the application in the coal pit, it pro ves that the adsorption behavior of the cement particle could be improved by the addition of water-soluble polymer and surface active agent.

同时利用水溶性聚合物和表面活性剂改善水泥粒子的吸附性能，借助扫描电镜分析研究了添加剂与水泥粒子的吸附作用机理。

To decrease the cost of C/C composites, the surfactants are used to improve the impregnation performance of coal tar pitch.

为降低C/C复合材料制造成本，采用表面活性剂对煤沥青进行改性。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。